diff options
| author | jljusten <jljusten@6f19259b-4bc3-4df7-8a09-765794883524> | 2010-10-13 07:07:29 +0000 |
|---|---|---|
| committer | jljusten <jljusten@6f19259b-4bc3-4df7-8a09-765794883524> | 2010-10-13 07:07:29 +0000 |
| commit | 55cdb67acb3df840c1d3bbf0e0e78fba27dcfbe3 (patch) | |
| tree | 58a1f4230163703a82793105be85d080bcd41728 /OvmfPkg | |
| parent | 3d131d1a207103cf0f5a849c6972a139156d9bd2 (diff) | |
| download | edk2-platforms-55cdb67acb3df840c1d3bbf0e0e78fba27dcfbe3.tar.xz | |
OVMF: Support greater than 2GB of memory
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10928 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'OvmfPkg')
| -rw-r--r-- | OvmfPkg/PlatformPei/MemDetect.c | 6 | ||||
| -rw-r--r-- | OvmfPkg/PlatformPei/Platform.c | 23 | ||||
| -rw-r--r-- | OvmfPkg/PlatformPei/Platform.h | 2 |
3 files changed, 19 insertions, 12 deletions
diff --git a/OvmfPkg/PlatformPei/MemDetect.c b/OvmfPkg/PlatformPei/MemDetect.c index 5e09cc9375..9a82cc79d0 100644 --- a/OvmfPkg/PlatformPei/MemDetect.c +++ b/OvmfPkg/PlatformPei/MemDetect.c @@ -54,7 +54,7 @@ GetSystemMemorySize ( Cmos0x34 = (UINT8) CmosRead8 (0x34);
Cmos0x35 = (UINT8) CmosRead8 (0x35);
- return ((((Cmos0x35 << 8) + Cmos0x34) << 16) + SIZE_16MB);
+ return (((UINTN)((Cmos0x35 << 8) + Cmos0x34) << 16) + SIZE_16MB);
}
@@ -64,7 +64,7 @@ GetSystemMemorySize ( @return EFI_SUCCESS The PEIM initialized successfully.
**/
-EFI_STATUS
+EFI_PHYSICAL_ADDRESS
MemDetect (
)
{
@@ -103,6 +103,6 @@ MemDetect ( AddMemoryRangeHob (BASE_1MB, MemoryBase);
AddMemoryRangeHob (0, BASE_512KB + BASE_128KB);
- return EFI_SUCCESS;
+ return MemoryBase + MemorySize;
}
diff --git a/OvmfPkg/PlatformPei/Platform.c b/OvmfPkg/PlatformPei/Platform.c index d35a1fbb5c..c379f88b4d 100644 --- a/OvmfPkg/PlatformPei/Platform.c +++ b/OvmfPkg/PlatformPei/Platform.c @@ -35,7 +35,7 @@ EFI_MEMORY_TYPE_INFORMATION mDefaultMemoryTypeInformation[] = {
{ EfiACPIMemoryNVS, 0x004 },
{ EfiACPIReclaimMemory, 0x008 },
- { EfiReservedMemoryType, 0x004 },
+ { EfiReservedMemoryType, 0x004 },
{ EfiRuntimeServicesData, 0x024 },
{ EfiRuntimeServicesCode, 0x030 },
{ EfiBootServicesCode, 0x180 },
@@ -104,6 +104,7 @@ AddMemoryRangeHob ( VOID
MemMapInitialization (
+ EFI_PHYSICAL_ADDRESS TopOfMemory
)
{
//
@@ -129,22 +130,26 @@ MemMapInitialization ( //
// Add PCI MMIO space available to PCI resource allocations
//
- AddIoMemoryBaseSizeHob (0x80000000, 0xFEC00000 - 0x80000000);
+ if (TopOfMemory < BASE_2GB) {
+ AddIoMemoryBaseSizeHob (BASE_2GB, 0xFEC00000 - BASE_2GB);
+ } else {
+ AddIoMemoryBaseSizeHob (TopOfMemory, 0xFEC00000 - TopOfMemory);
+ }
//
// Local APIC range
//
- AddIoMemoryBaseSizeHob (0xFEC80000, 0x80000);
+ AddIoMemoryBaseSizeHob (0xFEC80000, SIZE_512KB);
//
// I/O APIC range
//
- AddIoMemoryBaseSizeHob (0xFEC00000, 0x80000);
+ AddIoMemoryBaseSizeHob (0xFEC00000, SIZE_512KB);
//
// Video memory + Legacy BIOS region
//
- AddIoMemoryRangeHob (0x0A0000, 0x100000);
+ AddIoMemoryRangeHob (0x0A0000, BASE_1MB);
}
@@ -155,7 +160,7 @@ MiscInitialization ( //
// Disable A20 Mask
//
- IoWrite8 (0x92, (UINT8) (IoRead8 (0x92) | 0x02));
+ IoOr8 (0x92, BIT1);
//
// Build the CPU hob with 36-bit addressing and 16-bits of IO space.
@@ -206,15 +211,17 @@ InitializePlatform ( IN CONST EFI_PEI_SERVICES **PeiServices
)
{
+ EFI_PHYSICAL_ADDRESS TopOfMemory;
+
DEBUG ((EFI_D_ERROR, "Platform PEIM Loaded\n"));
- MemDetect ();
+ TopOfMemory = MemDetect ();
ReserveEmuVariableNvStore ();
PeiFvInitialization ();
- MemMapInitialization ();
+ MemMapInitialization (TopOfMemory);
MiscInitialization ();
diff --git a/OvmfPkg/PlatformPei/Platform.h b/OvmfPkg/PlatformPei/Platform.h index 53090ac2c7..0829f89d3b 100644 --- a/OvmfPkg/PlatformPei/Platform.h +++ b/OvmfPkg/PlatformPei/Platform.h @@ -39,7 +39,7 @@ AddMemoryRangeHob ( EFI_PHYSICAL_ADDRESS MemoryLimit
);
-EFI_STATUS
+EFI_PHYSICAL_ADDRESS
MemDetect (
VOID
);
|